Slidable pane mounting for windows



F. NUTTER SLIDABLE PANE MOUNTING FOR WINDOWS May 1, 1951 2 Sheets-Sheet 1 Filed Sept. 15, 1948 FIG. 2

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- SLIDABLE PANE MOUNTING FOR wmnows Filed Sept. 15, 1948 2 Sheets-Sheet 2 3 m FARR NUTTER,

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Patented May 1, 1951 UNITED STATES PATENT OFFICE SLIDABLE PANE MOUNTING FOR WINDOWS Farr Nutter, Elkins, W. Va.

Application September 13, 1948, Serial No. 48,987

8 Claims.

This invention relates to an improvement in windows and pertains particularly to window construction in which a pane of glass or the equivalent is slidable and is frictionally held so as to be adjustable to any predetermined position.

In my application Serial No. 739,139, filed April 3, 1947, I have disclosed a window with slidable panes, in which a pane of glass or the equivalent slides vertically in grooves provided in the opposed sides of the window frame. In the construction as shown in that application, the front side of the groove in the side framework is adjustable with respect to its distance from the back side of the groove, whereby the slidable pane is frictionally engaged by the sides of the grooves to be held in any predetermined position.

The window construction herein disclosed is an improvement upon the construction shown in the said prior application. In the present case the slidable glass pane is provided with a metallic strip which extends along the edges of the pane and is bent around over a portion of both faces of the pane and then backwardly at an acute angle to form wing portions which may press against the sides of the grooves which receive the slidable pane for the purpose of frictional engagement which is suflicient to hold the pane in any predetermined position.

An additional feature of the present construction is that the metallic strip not only enables the slidable pane to be adjustably positioned in the frame, but in the closed position this strip engages cross bar members which extend between the side portions of the window frame, to form a seal against the passage of air through the window and make it weather-tight.

Other features and advantages of my invention will be obvious from the following description and accompanying drawing, in which:

Fig. 1 is an elevational view of the face of a Window of the present construction;

Fig. 2 is a sectional view taken on the line 2-2 of Fig. 1 looking in the direction of the arrows;

Fig. 3 is a sectional view taken on the line 3-3 of Fig. 1 looking in the direction of the arrows;

Fig. 4 is a fragmentary view of a corner of a slidable pane showing a detail of the metallic strip;

Fig. 5 is a sectional view taken on the line 5-5 of Fig. 4 showing the cross sectional contour of the metallic strip; and

Fig. 6 is an enlarged sectional view taken on the line 5-6 of Fig. 1.

Referring in detail to the several figures of the drawing, like reference characters identify like structural parts.

Fig. 1 illustrates a preferred embodiment of my invention in which, for the sake of illustration, there is shown a window provided with four' panes of glass, of which the two lowerones are on rails are represented by t he verticalmembers -9 cal side rail members 6 and 'I, and an interme Cross.

diate vertical rail member, or muntin II. bar members 8, 9, and It extend horizontally between the vertical rail members 5, I, and I I. The fixed glass panes I3 are inserted in the two upper openings formed by the vertical members 6, I and II together with the horizontal members 9 and I0 in any suitable manner. The means used for this purpose forms no part of the present invention.

The slidable panes are indicated by the reference numeral I2. Hand grip lifting elements I4 are shown on each of the slidable panes I2. For the purpose of slidably supporting the right hand pane I2, as shown in Fig. 1, the vertical elements I and Il may be provided with opposed grooves to receive the pane I2. These grooves will extend upwardly as far as it will be desired to permit the slidable pane to be moved, which may be the entire height of the framework of the window. Obviously, these grooves will be placed in a plane parallel to, but spaced from the plane of the upper panes 13. The vertically extending groove provided in the rail member 1 is shown in Fig. 3 as having side portions 16, and IT, while in the opposed vertical rail member I I, the groove is provided with side portions 18, and I9. In the construction shown, the side ll of the groove provided in the member 1 and the side I9 of the groove provided in the member II are actually- The cross bar 8 is provided with a groove which has sides 2!! and 2| (as shown in Fig. 3). The surface 20 is substantially coplanar with the surfaces IB and I8, and the surface ii is substantially coplanar with the surfaces I1, and IS, in order that the lower edge of the slidable pane I 2 may be slid into a position adjacent to the surfaces '20 and 2| when closed. The cross bar member 9 is mortised in a vertical direction to permit the pane I2 to slide therethrough. The mortised interior portion of the cross bar 9 will therefore be provided with surfaces 22 and 23 adjacent to the upper edge of the pane l2 when closed. The surface 22 is formed substantially coplanar with the surfaces I6, and I8, while the surface 23 is formed substantially coplanar with surfaces l1, and IS.

The framework which surrounds the left hand and I I will be similarly constructed in a manner which will be obvious to one skilled in the art. It will be understood that a window built according to the teachings of my invention will not be limited to having two slidable panes placed side by side. Obviously any number of slidable pane could be provided in any desired arrangement of upper and lower panes, and furthermore with suitable modifications of construction which will be obvious, these panes may be arranged for slidable movement in a horizontal as well as vertical direction.

The means which provides for a weather-tight fit for the slidable panes I2 as well as a frictional engagement between the pane and the grooved frame members comprises a metallic strip 24 which extends over the four edges of the pane l2. This may be a single fiat strip which is first bent around the corners and whose abutting end portions may then be joined, such as by soldering. The strip is then bent along its length over a portion of each face of the pane [2, as indicated by the reference numerals 25, and 25 in Fig. 5. In order to provide a resilient frictional engagement with the framework of the window the metal strip is also provided with wing portions 21, and 2S which form acute angles with the portions 26, and 25, respectively. The extremities 27a, and 28a of the wing portions are bent toward the adjacent face of the pane l2 while intermediate surfaces 27b and 28b provide the actual engaging portions of the wing members 2'! and 28 respectively. In the formation of the strip 24 it is desirable to cut away portions of the elements 25, 26, 2'5, and 28 at the corners of the pane, as shown in Fig. 4, in order to avoid double thicknesses of the metal and to provide substantially smooth surfaces.

In operation, when the slidable pane is closed, as exemplified by the left hand pane in Fig. l, the intermediate surface 212) will be in resilient frictional engagement with the back side of the grooves provided in the vertical members 6, and II, as well as the back side of the adjacent coplanar surfaces provided in the crossbar members 8, and 9, while the intermediate surface 28b will be in resilient frictional engagement with corresponding surfaces in front of the pane. The result will be a weather-tight fit for the pane l2 which will not allow the passage of air through the window.

When the pane is opened, as exemplified by the right hand pane l2 in Fig. 1, it may be lifted by means of the hand grip M which causes the pane to slide upwardly through the mortised opening provided in the cross bar member 9. The surfaces 2122 and 28b which were previously in engagement with adjacent surfaces provided in cross bar members 8 and 9 will become disengaged, but the surfaces 272) and 28b adjacent the sides of the grooves in the vertical rails T and H will remain in frictional engagement at all times to hold the pane l2 in any position to which it may be adjusted. When the pane is pushed downwardly to close it, the surfaces Zlb and 28?) portion Mb. This lifting element construction is shown in side sectional view in Fig. 6.

I claim:

1. A window comprising a slidable pane and a fixed frame having a pair of opposed grooved rails for supporting the slidable pane, members of sheet metal extending along the edges of the pane which slide in the grooves, said metallic members being movable with said pane and slidable with respect to the grooves and being bent to extend over a portion of one face of said pane, said metallic members having a wing portion bent to form an acute angle with the portion extending over the face of the pane, that edge portion of the wing portions of said metal members distant from said acute angle extending toward the plane of the pane so that an intermediate surface of the wing portion frictionally and resiliently engages with the side of said grooves, and means to fasten said metallic members to the pane to be movable therewith.

2. A window comprising a slidable pane and a fixed. frame having a pair of opposed grooved rails for supporting the slidable pane, members of sheet metal extending along the edges of the pane which slide in the grooves, said metallic members being movable with said pane and slidable with respect to the grooves and being bent to extend over a portion of both faces of said pane, said metallic members having wing portions bent to form an acute angle with the portions extending over the faces of the pane, that edge portion of the wing portions of said metal members distant from said acute angle extending toward the plane of the pane so that an inter mediate surface of each wing portion frictionally and resiliently engages with a side of said grooves, and means to fasten said metallic members to the pane to be movable therewith.

3. A weather-tight window comprising a slidable pane, and a fixed framework for supporting the slidable pane, two opposed sides of which are provided with grooves to receive the pane for slidable movement. said framework also having a pair of spaced cross bars extending between the opposed sides, a portion of each of the cross bars having a surface which is substantially coplanar with one side of said grooves and adjacent to an edge of the pane when it is in its closed position, a strip of sheet metal extending about the four edges of the pane, said metallic strip being bent along substantially its entire length over a portion of one face of said pane, and having a co-extensive wing portion bent to form an acute angle with the portion extending over the face of the pane, that edge portion of the wing portions of said metal members distant from said acute angle extending toward the plane of the pane so that an intermediate surface of the Wing portion yieldably and frictionally engages with the side of said grooves in all positions of the pane. and engages with said surfaces of cross bars when the pane is in its closed position, and means to fasten the metallic strip to the pane.

4. A weather-tight window comprising a slidable pane, and a fixed framework for supporting the slidable pane, two opposed sides of which are provided with grooves to receive the pane for slidable movement, said framework also having a pair of spaced cross bars extending between the opposed sides, a portion of each of the cross bars having surfaces which are substantially coplanar with the sides of said grooves, the surfaces of each of the cross bars being substantially adjacent to an edge of the pane when it is in a closed position, a strip of sheet metal extending about the four edges of the pane, said metallic strip being bent to extend over a portion of both faces of said pane, said metallic strip having coextensive wing portions bent to form an acute angle with the portions extending over the faces of the pane, that edge portion of the wing portions of said metal members distant from said acute angle extending toward the plane of the pane so that an intermediate surface of each wing portion frictionally and resiliently engages with the sides of said grooves in all positions of the pane, and engages with said surfaces of the cross bars when the pane is in its closed position.

5. A window comprising a slidable pane, a fixed frame having a pair of opposed grooved rails for supporting the slidable pane, members of sheet metal extending along the edges of the pane which slide in the grooves, said metallic members being bent to extend over a portion of one face of said pane, said metallic members having a wing portion bent to form an acute angle with the portion extending over the face of the pane, that edge portion of the wing portions of said metal members distant from said acute angle .7,

extending toward the plane of the pane so that an intermediate surface of the wing portion frictionally and resiliently engages with the side of said grooves, and means to fasten said metallic members to the pane, a window pane fastening element comprising a portion of the frame mounted to exert pressure on said wing portion at right angles to the face of the pane, and adjusting means cooperating with said fastening means and said frame for adjustably regulating the tension of said fastening means with respect to said wing portion and to the face of the pane whereby the pane may be held in any predetermined vertical position.

6. A window comprising a slidable pane, a fixed frame having a pair of opposed grooved rails for supporting the slidable pane, members of sheet metal extending along the edges of the pane which slide in the grooves, said metallic members being bent to extend over a portion of both faces of said pane, said metallic members having wing portions bent to form an acute angle with the portions extending over the faces of the pane, that edge portion of the wing portions of said m tal members distant from said acute angle extending toward the plane of the pane so that an intermediate surface of each wing portion frictionally and resiliently engages with a side of said grooves, and means to fasten said metallic members to the pane, a window pane fastening element comprising a portion of the frame mounted to exert pressure on said wing portion at right angles to the face of the pane, and adjusting means cooperating with said fastening means and said frame for adjustably regulating the tension of said fastening means with respect to said wing portion and to the face of the pane whereby the pane may be held in any predetermined vertical position.

7. A weather-tight window comprising a slidable pane, a fixed framework for supporting the slidable pane, two opposed sides of which are provided with grooves to receive the pane for slidable movement, said framework also having a pair of spaced cross bars extending between the opposed sides, a portion of each of the cross bars having a surface which is substantially coplanar with one side of said grooves and adjacent to an edge of the pane when it is in its closed position, a strip of sheet metal extending about the four edges of the pane, said metallic strip being bent along substantially its entire length over a portion of one face of said pane, and having a co-extensive wing portion bent to form an acute angle with the portion extending over the face of the pane, that edge portion of the wing portions of said metal members distant from said acute angle extending toward the plane of the pane so that an intermediate surface of the wing portion resiliently and frictionally engages with the side of said grooves in all positions of the pane, and engages with said surfaces of the cross bars when the pane is in its closed position, and means to fasten the metallic strip to the pane, a wind-ow pane fastening element comprising a portion of the framework mounted to exert pressure on said wing portion at right angles to the face of the pane, and adjusting means cooperating with said fastening means and said framework for adjustabfy regulating the tension of said fastening means with respect to said wing portion and to the face of the pane whereby the pane may be held in any predetermined vertical position.

8. A weather-tight window comprising a slidable pane, a fixed framework for supporting the slidable pane, two opposed sides of which are provided with grooves to receive the pane for slidable movement, said framework also having a pair of spaced cross bars extending between the opposed sides, a portion of each of the cross bars having surfaces which are substantially coplanar with the sides of said grooves, the surfaces of each of the cross bars being substantially adjacent to an edge of the pane when it is in a closed position, a strip of sheet metal extending about the four edges of the pane, said metallic strip being bent to extend over a portion of both faces of said pane, said metallic strip having co-extensive wing portions bent to form an acute angle with the portions extending over the faces of the pane, that edge portion of the wing portions of said metal members distant from said acute angle extending toward the plane of the pane so that an intermediate surface of each wing portion frictionally and resiliently engages with the sides of said grooves in all positions of the pane, and engages with said surfaces of the cross bars when the pane is in its closed position, a window pane fastening element comprising a portion of the framework mounted to exert pressure on said wing portion at right angles to the face of the pane, and adjusting means cooperating with said fastening means and said framework for adjustably regulating the tension of said fastening means with respect to said wing portion and to the face of the pane whereby the pane may be held in any predetermined vertical position.

FARR NUT'I'ER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 550,807 Timoney Dec. 3, 1895 1,796,105 Ingwersen Mar. 10, 1931 1,808,699 Watkins June 2, 1931 FOREIGN PATENTS Number Country Date 230,234 Great Britain 1924 298,230 Italy 1932 

